| 年度 | 实际值 |
|---|---|
| 1992 | 2403 |
| 1993 | |
| 1994 | |
| 1995 | 2263 |
| 1996 | |
| 1997 | |
| 1998 | |
| 1999 | 6835 |
| 2000 | 8900 |
| 2001 | 13800 |
| 2002 | 16300 |
| 2003 | 22600 |
| 2004 | 27100 |
| 2005 | 37800 |
| 2006 | 47400 |
| 2007 | 59800 |
| 2008 | 69000 |
| 2009 | 73900 |
| 2010 | 81300 |
| 2011 | 93200 |
| 2012 | 105400 |
| 2013 | 119100 |
| 2014 | 128600 |
| 2015 | 149300 |
| 2016 | 160000 |